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Virtual error compensation system of numerical control machine

A technology of CNC machine tools and compensation systems, applied in general control systems, control/regulation systems, simulators, etc., can solve problems such as the inability to automatically adapt to changes in machining conditions, and the inability to achieve comprehensive compensation for CNC machine tool errors, and improve machining accuracy. , easy to operate, and ensure the effect of robustness

Active Publication Date: 2011-04-27
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0004] The above technology is mainly an error compensation device developed for a certain error factor of CNC machine tools. These error compensation devices cannot realize comprehensive error compensation of CNC machine tools and cannot automatically adapt to changes in processing conditions. In order to realize comprehensive error compensation of CNC machine tools and automatically adapt to different cutting Error compensation under certain conditions requires the development of a special CNC machine tool error prediction and compensation system

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  • Virtual error compensation system of numerical control machine
  • Virtual error compensation system of numerical control machine
  • Virtual error compensation system of numerical control machine

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Embodiment Construction

[0017] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0018] like figure 1 As shown, this embodiment includes: an external data acquisition module, a digital modeling module, a data optimization module, a dynamic modeling module, a model generalization module, an error fitting compensation module and a communication module, wherein: the external data acquisition module passes the environmental information The acquisition unit collects external information and outputs it to the dynamic modeling module, model generalization module, and error fitting compensation module through the data conversion program and the data output channel; the digital modeling module generates...

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Abstract

The invention relates to a virtual error compensation system of a numerical control machine in the technical field of numerical control machining, comprising an external data acquisition module, a digital modeling module, a data optimization module, a dynamic modeling module, a model generalization module, an error fitting module, an error compensation module and a communication module. In the invention, a multi-module nesting mode is adopted; the external information acquisition module is used for acquiring environment information, numerical control machine information, cutting amount, cutter parameters, and the like; an error model is generated by the acquired information through the dynamic modeling module and the model generalization module; the error fitting module outputs an error fitting curve; the error compensation module outputs NC (Numerical Control) codes; and the communication module realizes the real-time communication with a CNC (Computer Numerical Controller) and data acquisition through a COM (Component Object Model) serial port and an RS232 serial port. The system of the invention can be used for predicting comprehensive errors of the numerical control machine under various cutting conditions and realizing real-time error compensation.

Description

technical field [0001] The invention relates to a device in the technical field of numerical control machining, in particular to a virtual compensation system for numerical control machine tool errors. Background technique [0002] With the continuous development of numerical control technology, numerical control machine tools are widely used in various fields of mechanical processing. However, due to the original static geometric error of the CNC machine tool and the dynamic error factors such as the thermal error generated during the cutting process, the tool wear error and the error caused by the cutting force, these errors seriously affect the machining accuracy of the CNC machine tool, especially in precision and ultra-precision In processing, it is difficult to completely eliminate these errors by improving the precision of CNC machine tools alone, especially thermal errors generated during processing, errors caused by cutting forces, and tool wear errors. These errors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
Inventor 范开国杨建国侯广锋王维
Owner SHANGHAI JIAO TONG UNIV
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